Homebrew PCBs

Yeah, I thought about that.
I can see that having a lot to do with the longevity.


On 12/23/2012 7:43 PM, AlienRelics wrote:
> Widening a hole is asking a lot less than drilling a hole where none exists.
>
> Steve Greenfield AE7HD
>
> --- In Homebrew_PCBs@yahoogroups.com, Corey Minion <csminion@...> wrote:
>> Odd, I have drilled out hundreds if not thousands of undersized holes in
>> boards (down to my last 25 boards after 3 years)
>> It was my first pcb design and I screwed that up, never occurred to me
>> that there were different sized leads on that first one.
>> Anyone lubing there bits and tools prior to cutting?
>> Also, are you use some sort of cooling?
>> I use compressed air when working on boards.
>>
>> I have used 2 HSS bits over all that time, never noticed them dull much
>> more than any tool I may work with on polycarb or acrylic.
>> I find it dulls far less than working on ferrous metals, and less than
>> non-ferrous as well.
>>
>> I am a college and real world trained silver(metal)smith since 89.
>> I have always been really conscious of tool sharpness
>>
>> Worst material I have found so far to work with, industrial ceramics.
>> EATS tools. nam nam nam.
>>
>
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
>